Celtic and Rangers contest is always is high stakes and no one man is under more scrutiny that the man charged with keeping a lid on proceedings.
Bobby Madden knows the fixture well and he was back in charge for the first time since the 2-0 win for the Hoops back in September 2019.The 42-year-old is a veteran of this contest and he would have been acutely aware that it was always liable to boil over despite a rather sedate first half.
And he duly did as he was forced into a major decision as he sent Nir Bitton off after the defender became entangled with Alfredo Morelos in the 62nd minute.
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